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GstAdapter: add a unchecked variant of flush for internal usage

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Trims off 10-20% cpu time when using gst_adapter_take[_buffer]
This commit is contained in:
Edward Hervey 2010-03-25 10:27:00 +01:00
parent e875577b0f
commit 7a8004233a
1 changed files with 17 additions and 11 deletions
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28
libs/gst/base/gstadapter.c
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@ -463,23 +463,16 @@ gst_adapter_copy (GstAdapter * adapter, guint8 * dest, guint offset, guint size)
*
* See also: gst_adapter_peek().
*/
void
gst_adapter_flush (GstAdapter * adapter, guint flush)
static void
gst_adapter_flush_unchecked (GstAdapter * adapter, guint flush)
{
GstBuffer *cur;
guint size;
GstAdapterPrivate *priv;
GSList *g;
g_return_if_fail (GST_IS_ADAPTER (adapter));
g_return_if_fail (flush <= adapter->size);
GST_LOG_OBJECT (adapter, "flushing %u bytes", flush);
/* flushing out 0 bytes will do nothing */
if (G_UNLIKELY (flush == 0))
return;
priv = adapter->priv;
/* clear state */
@ -519,6 +512,19 @@ gst_adapter_flush (GstAdapter * adapter, guint flush)
adapter->priv->distance += flush;
}
void
gst_adapter_flush (GstAdapter * adapter, guint flush)
{
g_return_if_fail (GST_IS_ADAPTER (adapter));
g_return_if_fail (flush <= adapter->size);
/* flushing out 0 bytes will do nothing */
if (G_UNLIKELY (flush == 0))
return;
gst_adapter_flush_unchecked (adapter, flush);
}
/**
* gst_adapter_take:
* @adapter: a #GstAdapter
@ -559,7 +565,7 @@ gst_adapter_take (GstAdapter * adapter, guint nbytes)
copy_into_unchecked (adapter, data, adapter->skip, nbytes);
}
gst_adapter_flush (adapter, nbytes);
gst_adapter_flush_unchecked (adapter, nbytes);
return data;
}
@ -646,7 +652,7 @@ gst_adapter_take_buffer (GstAdapter * adapter, guint nbytes)
}
done:
gst_adapter_flush (adapter, nbytes);
gst_adapter_flush_unchecked (adapter, nbytes);
return buffer;
}